Miscellaneous
How does energy transfer to make your toaster work?
Electrical energy is transferred into thermal energy.
What effect does mass have on gravity?
The larger the mass, the greater the gravity.
The amount of waves that pass by a point in a given amount of time.
Frequency
An object is in motion if it changes position relative to this.
What is a REFERENCE POINT?
How does mass relate to kinetic energy?
As the mass of an object increases, its kinetic energy also increases.
Which change will always result in an increase in the gravitational force between two objects?
increasing the masses of the objects and decreasing the distance between the objects
When does a wave have its greatest potential energy?
At its highest/farthest point.
The energy of movement.
KINETIC energy
This is the equation for speed.
What is DISTANCE/TIME?
How is distance related to Gravity?
The further apart two objects are, the less gravity.
The distance from one crest of a wave to the next crest?
Wave length
How are force and mass related to an object's motion.
The more mass an object has, the greater the amount of force will be needed to create motion.
A ball is thrown forward at 5 m/s.
How would the path of the ball differ on Earth than on the moon?
The ball would curve down more sharply on Earth than on the moon.
What are two kinds of waves?
Transverse and longitudinal.
Which has more KINETIC energy? A book on a shelf, or a book falling off of a shelf?
The falling book because it is in motion.
What do we call the force of gravity on our body's mass.
Weight
In order for a roller coaster to function using only gravity, where should its highest point be?
At the very beginning.
If you push a shopping cart with a force of 20N, and the friction on the wheels is 8N, what is the net force acting on the shopping cart?
12 Newtons
How is frequency related to wavelength?
shorter wavelengths are higher frequency
longer wavelengths are lower frequency
According to Newton's 3rd law, if there were no gravity, in order for an object to change directions what would have to happen?
An opposing (opposite) force must be applied in order to create a change in direction.
Why is it important for safety equipment to be made of materials that can absorb the force of collisions?